THK LTR-A Series Compact Rotary Ball Spline with Support Bearing

The THK LTR-A Series Compact Rotary Ball Spline with Support Bearing is an integrated rotary ball spline designed for compact, high-rigidity linear and rotary motion applications. The support bearing is incorporated into the outer surface of the spline nut, reducing the overall installation space while simplifying mounting.

The LTR-A uses a preloaded ball arrangement to reduce angular backlash and provide precise torque transmission. Its support bearing is designed to accommodate moment loads, while the spline nut can be secured directly to the housing using bolts.

Available with spline shaft diameters from 8 to 40 mm, the series offers a range of torque, load and permissible moment capacities. Solid or hollow spline shaft options and contamination-protection configurations provide flexibility for different machine designs.